> Markdown version of [/jobs/ext/4683344-mission-security-engineer](https://www.wearedevelopers.com/jobs/ext/4683344-mission-security-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mission Security Engineer - **Company:** Kforce Inc. - **Location:** Fairfax County, VA, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Systems Engineering, Cyber Security, Field-Programmable Gate Array (FPGA), Secure Coding, Systems Architecture, System Testing, Virtualization Technology, MagicDraw - **Published:** November 12, 2026 - **Apply:** https://www.dice.com/job-detail/6f6ebbab-23c2-40fc-8a0a-f12196d874ab ## About the Role The ideal candidate has experience with mission security, cybersecurity engineering, systems engineering, software assurance, supply chain risk management, and threat-based security architecture within government, defense, or other highly regulated environments., * Bachelor's degree in Engineering, Mathematics, or Physics * 3+ years of experience with mission security methods, techniques, and systems * Experience analyzing engineering requirements and supporting testing and evaluation throughout the systems engineering lifecycle Experience with security disciplines such as: * Cybersecurity * Mission Security * Software Assurance * Supply Chain Risk Management * Operations Security * Experience applying secure coding practices and securing operating systems and virtualization technologies * Ability to develop security architectures based on adversary threat analysis and proposed countermeasures * Applicants selected will be subject to a government security investigation and must meet eligibility requirements for access to classified information, * Master's degree in Engineering, Mathematics, Physics, or a closely related technical discipline * Experience with Cross Domain Solutions (CDS) * Experience developing or analyzing system architecture models using Cameo or MagicDraw * Experience with cryptographic algorithm implementation * Experience designing, implementing, and testing security countermeasures * Experience with Security State of the Art (S-SOTA) technologies and approaches * Knowledge of security features associated with Commercial Off-the-Shelf (COTS) FPGAs ## Description #restonfed, We are seeking an experienced Mission Security Engineer to design and implement secure architectures for complex, mission-critical systems. This role will focus on integrating cybersecurity throughout the systems engineering lifecycle while balancing operational requirements, emerging threats, and security objectives., * Design and develop secure system architectures based on technical requirements, adversary threats, vulnerabilities, and proposed countermeasures * Integrate cybersecurity and mission security principles throughout the systems engineering lifecycle * Analyze engineering requirements and support system testing, evaluation, and lifecycle activities * Support security disciplines including Cybersecurity, Mission Security, Software Assurance, Supply Chain Risk Management, and Operations Security * Identify opportunities to harden systems and reduce potential attack surfaces * Apply secure coding practices and support the security of operating systems and virtualized environments * Evaluate potential security technologies, techniques, and architectural alternatives * Design and assess security countermeasures against identified threats * Collaborate with engineering, cybersecurity, and mission teams to balance security requirements with operational needs * Provide technical recommendations and documentation supporting secure system design and implementation